Angular scoop guide sliders for separable fastener stringers



. 24 50' H IO i L J 2t INVENTOR LOUIS H. MORJN ATTORN E;

United States Patent ANGULAR S'CGOP GUIDE SLIDERS FOR SEPARABLE FASTENER STRINGERS Louis H. Morin, Bronx, N. Y. Application June 19, 1953, SerialNo. 362,859

3 Claims. (Cl. 24-20515) This invention relates to sliders for separable fastener stringers for use in coupling and uncoupling the scoops of such stringers. More particularly, the invention deals with a slider structure having means for arranging the scoops in angular relationship to each other in passage into and out of the scoop body to facilitate coupling and uncoupling of the scoops.

Still more particularly, the invention deals with a slider structure of the kind defined, wherein the usual side flanges, defining the channel of the slider body, are eliminated so that coupling and uncoupling of stringer scoops is accomplished solely by engagement of the slider with the scoops with the slider in spaced relation to the tapes of the stringers.

The novel features of the invention will be best understood from the following description, when taken together with the accompanying drawing, in which certain embodiments of the invention are disclosed and, in which, the separate parts are designated by suitable reference characters in each of the views and, in which:

Fig. 1 is a cross-sectional view through one form of slider structure which I employ, illustrating scoops of a pair of stringers in engagement therewith, the section being substantially on the broken line 1-1 of Fig. 3.

Fig. 2 is a longitudinal section on the line 2--2 of Fig. 1.

Fig. 3 is a section on the line 3--3 of Fig. 2.

In the form of slider disclosed, I have illustrated the same for use in coupling and uncoupling what I term center ledge scoops of separable fastener stringers of the type and kind more specifically disclosed in my Patent No. 2,720,015, issued October 11, 1955.

Center ledge scoops of the kind referred to can be coupled together with the scoops of one stringer disposed angularly to the scoops of the companion stringer and, accordingly, I have shown, in the accompanying drawings, slider structures for supporting the stringer scoops in this angular relationship in the coupling and uncoupling of the scoops.

In Figs. 1 to 3, inclusive, I have shown one form of slider structure, comprising a main slider body 10, comprising a flangeless wall 11 having, at one end, a downwardly extending web 12 which divides the wide end portion 13 of the wall 11 into two entrance sides 14, 15, note Fig. 3 of the drawing. The web 12 includes a projecting rivet portion 16 which passes through and secures the associate or bottom slider wall 17 in position in defining the resulting slider. The wall 17, like the wall 11, is also unflanged, as clearly noted in Fig. 1 of the drawing, leaving the sides of the resulting slider open to the full spacing between inner surfaces of the walls 11 and 17, as clearly shown.

The wall 11 has, around the web 12, a raised platform 18, generally conforming to the contour of the web 12, as clearly shown in Fig. 3. The platform has two projecting rails or ribs 19 which form, between the same and the web, grooves 20. The wall 11 has other projecting rails or ribs 21 which are substantially equal in height to the platform 18, the rails 21 paralleling the short rails 19 and also are disposed parallel to side edges of the wall 11, as clearly noted in Fig. 3 of the drawing. The short rails 19 are essential simply to guide the scoops 22, 22' into coupling engagement with each other within the slider. The sco'ops are mounted on stringer tapes 23, 23, parts of which are shown. in Fig. 1 of the drawing.

The. rails 21 form, between the rails 19 and platform. 18, grooves 24. Grooves 24, 24 converge into a single groove 25 formed by rails 21 near the narrow, or contracted end of the slider, as shown in Fig. 3.

It will be noted from a consideration of Fig. 2 of the drawing that the wall 11 has an outwardly projecting pull bearing 26, with which the usual pull of a slider is coupled. The pull is not shown, as it forms no part of the present conception.

One side of each of the scoops 22, 22 has grooves 27, 27; 28, 28" for reception of the rails 19 and 21, respectively. These same sides of the scoops having projecting coupling portions 29, 29, 3t), 30 which operate in the grooves 20 and 24, 24' and 25 respectively.

It will be apparent that the platform, in conjunction with the two rails 19 and 21, support the scoops 22, 22' in the angular relationship shown clearly in Fig. 1 of the drawing in bringing these scoops into coupling engagement with each other and, after the scoops are coupled and passed through the contracted end of the slider, the scoops will assume a flat relationship to each other, as with other fasteners of this type and kind.

One distinctive feature of the structure shown in Figs. 1 to 3, inclusive, resides in the fact that, by utilizing the fiangeless walls 11 and 17, the slider is kept in wide spaced relationship to the stringer tapes 23, 23 at all times, thus dispensing with wear on the tapes, as experienced with the flange-type of slider body. In other words, with the present construction, coupling engagement is maintained solely between the slider and the scoops. In other words, a guide rail scoop structure is provided, wherein the scoops are formed to be guided by the rails into coupling engagement with each other.

Having fully described my invention, what I claim as new and desire to secure by Letters Patent is:

1. In separable fasteners of the character described, employing stringers having scoops adapted to be coupled and uncoupled, a channelled slider body defined by walls spaced at one end of the slider body in a web, one wall of the slider body having means for supporting the scoops of opposed stringers in angular relationship to each other to facilitate coupling engagement within the slider body, longitudinal ribs on said means adapted to engage said scoops and said wall having other means disposed inwardly of the side edges of said slider engaging the scoops to retain the same against displacement from the channels of the slider body, the other of said walls having a flat fiangeless inner surface presented to-said scoops.

2. In separable fasteners of the character described,

employing stringers having scoops adapted to be coupled and uncoupled, a channelled slider body defined by walls spaced at one end of the slider body in a web, one wall of the slider body having means for supporting the scoops of opposed stringers in angular relationship to each other to facilitate coupling engagement within the slider body, said wall having other means disposed inwardly of the side edges of said slider engaging the scoops to retain the same against displacement from the channels of the slider body, said first named means comprising a raised platform in the channels of the slider body in the environment of said web, and longitudinal ribs on said platform adapted to engage said scoops.

3. In separable fasteners of the character described,

employing stringers having scoops adapted to be coupled said wall having other means disposed inwardly of the side edges of said slider engaging the scoops to retain the same against displacement from the channels of the slider body, said first named means comprising a raised platform in the channels of the slider body in the environment of said web and longitudinal ribs on said platform adapted to engage said scoops, and the second named means comprising spaced raised ribs disposed within the channels of the slider body.

References Cited in the file of this patent UNITED STATES PATENTS Judson Aug. 29, 1893 Prentice July 17, 1928 Ulrich Aug. 6, 1929 Sund-back Sept. 7, 1937 Behrens June 6, 1939 Lyeth Dec. 5, 1950 FOREIGN PATENTS Switzerland Jan. 2, 1952 Germany Sept. 7, 1939 

